package admin

import (
	"context"
	"strings"

	"github.com/google/uuid"

	"github.com/yuxingu/digital-psychology/apps/api/internal/repository"
)

var (
	ErrBadFeedbackRating   = errString("rating must be 1-5")
	ErrBadFeedbackTag      = errString("invalid tag")
	ErrFeedbackNoteLong    = errString("note too long")
	ErrMessageNotInThread  = errString("message not in thread")
)

// ListQualityFeedback lists recent QualityFeedback.
func (s *Service) ListQualityFeedback(ctx context.Context, limit, offset int) ([]repository.QualityFeedbackRow, error) {
	items, err := s.Repo.ListQualityFeedback(ctx, limit, offset)
	if err != nil {
		return nil, err
	}
	if items == nil {
		items = []repository.QualityFeedbackRow{}
	}
	return items, nil
}

// CreateQualityFeedback is ops-submitted feedback.
func (s *Service) CreateQualityFeedback(
	ctx context.Context, adminID, threadID uuid.UUID, messageID *uuid.UUID, rating int, tag, note string,
) (*repository.QualityFeedbackRow, error) {
	var tagPtr, notePtr *string
	if strings.TrimSpace(tag) != "" {
		t := strings.TrimSpace(tag)
		tagPtr = &t
	}
	if strings.TrimSpace(note) != "" {
		n := strings.TrimSpace(note)
		notePtr = &n
	}
	row, err := s.Repo.CreateAdminQualityFeedback(ctx, adminID, threadID, messageID, rating, tagPtr, notePtr)
	if err == nil {
		return row, nil
	}
	msg := err.Error()
	switch {
	case strings.Contains(msg, "rating"):
		return nil, ErrBadFeedbackRating
	case strings.Contains(msg, "tag"):
		return nil, ErrBadFeedbackTag
	case strings.Contains(msg, "note"):
		return nil, ErrFeedbackNoteLong
	case strings.Contains(msg, "thread not found"):
		return nil, ErrAskThreadNotFound
	case strings.Contains(msg, "message not in thread"):
		return nil, ErrMessageNotInThread
	default:
		return nil, err
	}
}